package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
@Slf4j
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;

    @Override
    public void remove(Long id) {
        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();

        dishLambdaQueryWrapper.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(dishLambdaQueryWrapper);

        if(count1 > 0){
            throw new CustomException("当前分类下关联了菜品，不能删除");

        }

        LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();

        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,id);
        int count2 = setmealService.count(setmealLambdaQueryWrapper);

        if(count2 > 0){
            throw new CustomException("当前分类下关联了套餐，不能删除");
        }

        super.removeById(id);


    }


//    @Autowired
//    private SetmealService setmealService;
//
//    @Autowired
//    private DishService dishService;
//
//    /**根据id删除分类，删除之前需要进行判断
//     *
//     * @param id
//     */
//    @Override
//    public void remove(Long id) {
//        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
//
//        //添加查询条件，根据分类id进行查询
//        dishLambdaQueryWrapper.eq(Dish::getCategoryId,id);
//        int count1 = dishService.count(dishLambdaQueryWrapper);
//        //查询当前分类是否关联了菜品，如果已经关联，抛出一个异常
//        if(count1 > 0){
//            //已经关联了菜品，抛出一个异常
//            throw new CustomException("当前分类下关联了菜品，不能删除");
//        }
//
//        //查询当前分类是否关联了套餐，如果已经关联，抛出一个异常
//        LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();
//        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,id);
//        int count2 = setmealService.count(setmealLambdaQueryWrapper);
//
//        if(count2 > 0){
//            //已经关联了套餐，抛出一个异常
//        }
//
//        //正常删除分类
//       super.removeById(id);
//    }
}
